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History of the manufacturer  

Haller-Cunningham, Halcun; San Francisco

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Name: Haller-Cunningham, Halcun; San Francisco    (USA)  
Abbreviation: haller
Products: Model types
Summary:

Haller & Cunningham Electric Co.; 428 Market Street, San Francisco.

Trade name: Halcun

Founded: 1911
Closed: 1920
Production: 1910 -
History:

1911 Haller and Cunningham opened a retail store and manufactured wireless equipment. 1920 they went bankrupt, with liabilities four times their assets. See also Haller. W. B.; - Trade name Hallerio.

This manufacturer was suggested by Konrad Birkner † 12.08.2014.


Some models:
Country Year Name 1st Tube Notes
USA  16 Loose Coupler Receiving Set   Crystal receiver. Consisting ofHalcun Navy Type Loose CouplerMurdock variable Condenser A3... 
USA  16 Halcun Junior Loose Coupler No. 25   Halcun Junior Coupler for the radio beginner desiring a simple to operate coupler. The cou... 
USA  16 Halcun Amateur Loose Coupler No. 27   Halcun Amateur Loose Coupler. The coupler will tune 350 to 1500 meters with the average am... 
USA  16 Halcun Amateur Loose Coupler No. 28   Halcun Amateur Loose Coupler. The coupler will tune 350 to 1500 meters with the average am... 
USA  16 Halcun Standard Loose Coupler No. 29   Halcun Standard Loose Coupler. The primary was tapped by two different rotary switches. T... 
USA  16 Halcun Standard Loose Coupler No. 30   Halcun Standard Loose Coupler. The primary was tapped by two different rotary switches. T... 
USA  14 Halcun Crystal Detector   The Haller-Cunningham Halcun Crystal Detector. This detector had a rotating cup that held ... 
USA  14 Halcun Loose Coupler   The Haller-Cunningham Halcun Loose Coupler receiving transformer tuned down to 3000 meters. 
USA  14 Halcun Junior Variable Condenser   Haller Cunningham Electric Co. Halcun Variable Condenser; Capacity almost .001 mfd, 16 sta... 
USA  19 Halcun Short Wave Crystal Receiver Type B    
USA  17 Rotary Spark Gap   Haller-Cunningham Company Halcun Rotary Spark Gap  
USA  19 Halcun Audion Panel   Molded bakelite 3/8" thick panel. All wiring and connections are molded into the panel.... 

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Further details for this manufacturer by the members (rmfiorg):

tbn_halcun8.jpg
March 1920 Everyday Engineering magazine advertisement announcing the name change from Haller Cunningham to just Halcun.tbn_usa_hallercunningham_ad_march_everydayengineering.jpg
Image from page 96 of "Journal of electricity" (1917) Picture of the Haller Cunningham Electric Company on 428 Market Street in San Francisco.tbn_haller_cunningham_428_market_street.jpg
George F. Haller and Elmer T. Cunningham wrote a book together that was published in 1910. The book was "The Tesla High Frequency Coil."tbn_haller_cunningham_tesla_book_1910.jpg
tbn_usa_cunningham_1915_tube.jpg

  
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